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Finding the Fourth Proportional to 187,171.46, 280,726.44 and 67,203.58

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Solution

The fourth proportional to 187,171.46, 280,726.44 and 67,203.58 is: 100,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,171.46 : 280,726.44 = 67,203.58 : x
  2. Step 2: Convert to fraction form
    187,171.46/280,726.44 = 67,203.58/x
  3. Step 3: Cross multiply
    187,171.46x = 280,726.44 × 67,203.58
  4. Step 4: Simplify right side
    187,171.46x = 18,865,821,719.21
  5. Step 5: Solve for x
    x = 18,865,821,719.21/187,171.46
  6. Step 6: Final answer
    x = 100,794.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.